Data/hora: 16/06/2024 09:21:44

Provedor de dados: 	106	
País: 	Thailand	
Título: 	การสำรวจความแปรปรวนของคุณภาพข้าวหอมมะลิ

Survey on quality variation of Hawm Mali rice	
Autores: 	Grissana Sudtasarn.	
Data: 	2014-12-24	
Ano: 	2014	
Palavras-chave: 	Hawm Mali rice; Grain physical properties; Grain chemical properties; Grain quality survey; North eastern Thailand; Aromatic rice; Grain quality; ข้าวหอมมะลิ; ลักษณะทางกายภาพของเมล็ดข้าว; ลักษณะทางเคมีของเมล็ดข้าว; การสำรวจ; สารระเหย; คุณภาพเมล็ดข้าว; ภาคตะวันออกเฉียงเหนือ.	
Resumo: 	The survey was conducted in 2013 in order to collect the information on production management of Kao Dawk Mali rice from various sources, i.e. seed sources, farmers' fields, local mills in the area of north eastern and upper northern Thailand, and also from the exporters. The samples of Kao Dawk Mali rice were taken for evaluating their grain physical and chemical properties. The content of 2-Acetyl-1-Pyroline (2AP) of those samples were measured in order to evaluate for their aromatic levels. Soil samples from each farmers' fields were also taken to analyse for soil texture, soil pH, soil nutrients and soil organic matter. The results from grain quality analyses indicated that all samples being analysed had met the standard of Hom Mali rice. The average grain length was 7.26 mm., ranging between 6.79 – 7.70 mm. The average ratio between grain length and width was 3.36, ranging between 3.12 – 3.70. The average amylose content was 15.43%, ranging between 12.91– 20.55%. The average alkali spreading value was 6.7, ranging between 6.0 – 7.0. The average content of 2AP of seed samples collected from north eastern region was 3.62 ppm, ranging between 1.64 – 8.26 ppm, while the average 2AP content of those samples collected from upper northern region was 3.26 ppm, ranging between 1.13 – 5.81 ppm. The average content of 2AP of grain samples collected from farmers' fields in north eastern region was 3.68 ppm, ranging between 1.04 – 10.69 ppm, while the average 2AP content of those samples collected from upper northern region was 4.80 ppm, ranging between 1.22 – 11.42 ppm. The average 2AP content of grain samples collected from local mills in north eastern region was 1.54 ppm, ranging between 0.26 – 3.44 ppm, while the average 2AP content of those samples collected from local mills in upper northern region was 2.26 ppm, ranging between 0.94 – 3.89 ppm. The results of the partial least square regression (PLS) analysis using the information on crop management and soil properties of 501 samples revealed the major factors affecting the 2AP content of Hom Mali rice. Based on soil properties,  samples collected from upper northern region could be differentiated from those collected from north eastern region. However, soil samples could not be differentiated based on production systems.	
Tipo: 	PhysicalObject	
Idioma: 	Thailandês	
Identificador: 	[Proceeding of rice and temperate cereal crops conference 2014: Rice research center groups in north-eastern region], Surin (Thailand), p. 243-267

http://anchan.lib.ku.ac.th/agnet/handle/001/5636

เอกสารประกอบการประชุมวิชาการข้าวและธัญพืชเมืองหนาว ประจำปี 2557: กลุ่มศูนย์วิจัยข้าวภาคตะวันออกเฉียงเหนือ, สุรินทร์, หน้า 243-267	
Formato: 	299 p.	
Fonte: 	ลิขสิทธิ์เป็นของเจ้าของบทความแต่เพียงผู้เดียว

สงวนลิขสิทธิ์ตามพระราชบัญญัติลิขสิทธิ์ พ.ศ. 2537

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